The reading of an ammeter in the circuit

(i) `I` when key `K_(1)` closed key `K_(2)` is open
(ii) `I//2` when both keys `K_(1) and K_(2)` are closed Find the expression for the resistance of `X` in terms of the resistances of R and S

In the circuit shown in Figure, initially key K_(1) is closed and key K_(2) is open. Then K_(1) is opened and K_(2) is closed. Then

Find the total current in the circuit when the key K_(2) is (i) open (ii) closed.

The charge flowing across the circuit on closing the key K is

Shown in the figure is an R-L circuit. Just after the key (K) is closed

Shown in the figure is an R-L circuit. Just after the key (K) is closed

Shown in the figure is a parallel R , L,C circuit with key K_(1) closed and K_(2) opened . When K_(1) is opened and K_(2) is closed simultaneously find the maximum potential difference across the capacitor and maximum charge stored in it .

Shown in the figure is a parallel R , L,C circuit with key K_(1) closed and K_(2) opened . When K_(1) is opened and K_(2) is closed simultaneously find the maximum potential difference across the capacitor and maximum charge stored in it .

The galvanometer deflection , when key K_(1) is closed but K_(2) is open equals theta_(0) (see figure ) On closing k_(2) also and adjusting R_(2) to 5Omega , the deflection in galvanometer becomes (theta_(0))/(5) the resistnce of the galvanometer is then , given by [Neglect the internal resistance of battery]:

In the circuit shown, keys K_1 and K_2 both are closed the ammeter reads I_0 . But when K_1 is open and K_2 is closed, the ammeter reads I_0//2 . Assuming that ammeter resistance is much less than R_2 , the values of r and R_1 is Omega are